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Finding the Fourth Proportional to 359,149.63, 495,633.99 and 198,011.47

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Solution

The fourth proportional to 359,149.63, 495,633.99 and 198,011.47 is: 273,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,149.63 : 495,633.99 = 198,011.47 : x
  2. Step 2: Convert to fraction form
    359,149.63/495,633.99 = 198,011.47/x
  3. Step 3: Cross multiply
    359,149.63x = 495,633.99 × 198,011.47
  4. Step 4: Simplify right side
    359,149.63x = 98,141,214,941.87
  5. Step 5: Solve for x
    x = 98,141,214,941.87/359,149.63
  6. Step 6: Final answer
    x = 273,259.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.